What would be a good aftermarket ecu to use for a S4 N/A to Turbo 2 swap. Ive got a good price on motor/tranny but i need a ecu, and was just thinking of doing a standalone to handle it instead of hunting around for a Turbo2. My engine is about to go and the price of a rebuild will bea bout the same as a t2 swap.

 

search for N/A to turbo swaps, see what they run

Personally - Haltech

But there are nearly countless other engine managment companies...

Microtech
Megasquirt
Wolf
Apexi
on
and
on
......

 

i read the faq on it, but i was just wanting opinions on it. And feed back on the ecu. Why do you say haltech?

Which one from haltech i as looking at either the E8 or E6GMX

 

I like the haltech because its so widely used therefore many tuners are familiar with it......it offers nice features like datalogging and aux. outputs to control things like an E-fan (granted many standalones have these types of features)

Basically I guess its te first one I used and stuck with - guess you could compare it to your first lay....didn't it feel good???hehe well same principle applies to my opinion of the Hal.

BTW I use an E6X

 

microtech for the win, i find it easier to work with than the haltech and it seems to be picking up pace in the rotary world.

 

What do you mean by easier?

 

its not in DOS, options are all well layed out.
at http://www.microtech-efi.com/ (site seems to be down at the moment, i know they were overhauling the whole thing)
theirs more info and you can even download the software, cant do much without it pluged up but it gives a basic idea

 

kool thanks ill check it out, it would be better if i could do my own tuning then having to take it to a place everytime i do a serious mod to it.

 

I use a haltech. Its not windows based, its DOS based, as mentioned above. I think the instruction manual is somewhat ambiguous in some areas; its explanations aren't very clear, leaving you to wonder what it means. It is widely used and support is easy to find in person and on the web.

 

Are people forgetting HalWin? Haltech has has had Windows software for years...

Anyway I am personally partial to the Haltech, Microtech and Megasquirt.

The Haltech by far offers the most features and capability, but most people don't use all the extra stuff. The wiring harness is well made, and there is plenty of support (including base maps). It can get expensive when you start optioning it out and the case is kind of big (not the biggest problem but can be an issue). The Haltech has the most resolution of all three.

The Microtech is generally cheaper then the Haltech but more customized from the factory to the application. It's more straightforward to tune and the available hand controller is quite cool (they are several versions available). The software is aweful, and the wiring harness is not as high quality as Haltech. I have a Microtech on my car and have installed them on many others. I like it.

The Megasquirt is a true DIY ECU and you should not consider it if you are inexperienced with electronics. It's infinitly customizable if you can program it, and easy to hook up. I really like the Megatune software just because it's tuning interface is so straightforward...

In general if someone else is doing the work you should pick the ECU they are most familiar with. If you are a beginner, the Haltech has massive support and the available base maps help a lot.

If you search for "haltech vs. microtech" you will end up with a huge discussion that covers the major differences between the two.